# Description
`sub-<subject_id>/eeg/` contains EEG files. All EEG data are saved with BrainVision Core Data Format. Each recording consists of a `.vhdr`, `.vmrk` and `.eeg` files. All EEG files are anonymized.

`sub-<subject_id>/nasatlx/` containes results of the NASA-TLX.

## File name conventions
Each file follows the following file name conventions.
```
sub-<subject_id>_task-<task_name>_run-<run_number>_<type>.<extension>
```

## tasks
| Task name | Description |
| --------- | ----------- |
| 2stream   | ASME-2stream |
| 4stream   | ASME-4stream |
| oddball   | oddball task |
| restingEyesOpen | Resting state recordings with eyes opened. run-1 was recorded before the experiment, and run-2 was recorded after the experiment. |
| restingEyesClose | Resting state recordings with eyes closed. run-1 was recorded before the experiment, and run-2 was recorded after the experiment. |

## Description of markers

## ASME-2stream task
| Marker Number | Stimulus | Description                  |
| ------------- | -------- | ---------------------------- |
| 1             | S1       | Standard stimuli in Stream 1 |
| 2             | S2       | Standard stimuli in Stream 2 |
| 101           | D1       | Deviant stimuli in Stream 1 (low frequency, nontarget)  |
| 102           | D2       | Deviant stimuli in Stream 1 (high frequency, nontarget) |
| 103           | D3       | Deviant stimuli in Stream 2 (low frequency, nontarget) |
| 104           | D4       | Deviant stimuli in Stream 2 (high frequency, nontarget) |
| 111           | D1       | Deviant stimuli in Stream 1 (low frequency, target) |
| 112           | D2       | Deviant stimuli in Stream 1 (high frequency, target) |
| 113           | D3       | Deviant stimuli in Stream 2 (low frequency, target) |
| 114           | D4       | Deviant stimuli in Stream 2 (high frequency, target) |
| 201           | N/A       | The start of a new trial with target of D1 |
| 202           | N/A       | The start of a new trial with target of D2 |
| 203           | N/A       | The start of a new trial with target of D3 |
| 204           | N/A       | The start of a new trial with target of D4 |

## ASME-4stream task
| Marker Number | Stimulus | Description                  |
| ------------- | -------- | ---------------------------- |
| 1             | S1       | Standard stimuli in Stream 1 |
| 2             | S2       | Standard stimuli in Stream 2 |
| 3             | S3       | Standard stimuli in Stream 3 |
| 4             | S4       | Standard stimuli in Stream 4 |
| 101           | D1       | Deviant stimuli in Stream 1 (nontarget)  |
| 102           | D2       | Deviant stimuli in Stream 2 (nontarget) |
| 103           | D3       | Deviant stimuli in Stream 3 (nontarget) |
| 104           | D4       | Deviant stimuli in Stream 4 (nontarget) |
| 111           | D1       | Deviant stimuli in Stream 1 (target) |
| 112           | D2       | Deviant stimuli in Stream 2 (target) |
| 113           | D3       | Deviant stimuli in Stream 3 (target) |
| 114           | D4       | Deviant stimuli in Stream 4 (target) |
| 201           | N/A       | The start of a new trial with target of D1 |
| 202           | N/A       | The start of a new trial with target of D2 |
| 203           | N/A       | The start of a new trial with target of D3 |
| 204           | N/A       | The start of a new trial with target of D4 |

## oddball task
| Marker Number | Stimulus | Description                  |
| ------------- | -------- | ---------------------------- |
| 1             | nontarget | Standard (nontarget) stimuli |
| 11            | target    | Deviant (target) stimuli |

## restingEyesOpen and resting EyesClose
No marker was recorded during the resting state recording. While recording restingEyesOpen and restingEyesClose, subjects were requested to open and close their eyes, respectively.